SSM整合之文件上传---MultipartFile-(绝对详细)

项目中用到的 文件上传 添加到 数据库 保存路径
注意，上传功能，需要引入两个依赖

    <!-- 文件上传的jar包 --><dependency><groupId>commons-io</groupId><artifactId>commons-io</artifactId><version>2.4</version></dependency><dependency><groupId>commons-fileupload</groupId><artifactId>commons-fileupload</artifactId><version>1.3.1</version></dependency>

在springmv.xml中配置上传文件解析器

<!--    配置 文件上传--><bean class="org.springframework.web.multipart.commons.CommonsMultipartResolver" id="multipartResolver"><property name="defaultEncoding" value="utf-8"></property><property name="maxUploadSize" value="52424000"></property></bean>

首先就是 dao接口
UserMapper

    //用户添加int addUser(User user);

UserMapper.xml

<!--   插入用户信息 --><insert id="addUser" parameterType="com.lang.model.User">insert into t_user(userName,roleId,userImg,userAccount,userPassword,userTel,userWxid,userIdcard,userAddress,userDeleted,createTime,updateTime)values (#{
    userName},#{
    roleId},#{
    userImg},#{
    userAccount},#{
    userPassword},#{
    userTel},#{
    userWxid},#{
    userIdcard},#{
    userAddress},0,Now(),Now())</insert>

UserService层

    //用户添加String addUser(MultipartFile file, User user, ModelMap map) throws IOException;

UserServiceImpl层

@Transactional@Overridepublic String addUser(MultipartFile file, User user, ModelMap map) throws IOException {
    userMapper.addUser(user);return "redirect:/userList.action";}

最后就是我们的 controller控制层

/*** 单个文件上传* @param* @return*/@RequestMapping(value = "/upload", method = RequestMethod.POST)public  String upload(             @RequestParam("userName") String name,@RequestParam("roleId") Integer roleId,@RequestParam("userAccount") String userAccount,@RequestParam("userPassword") String userPassword,@RequestParam("userTel") String userTel,@RequestParam("userWxid") String userWxid,@RequestParam("userIdcard") String userIdcard,@RequestParam("userAddress") String userAddress,@RequestParam("userImg") MultipartFile file,Model model,HttpServletResponse response, ModelMap map) throws IOException {
    User user = new User();// 保存图片的路径，图片上传成功后，将路径保存到数据库String filePath = "E:\\apache-tomcat-9.0.37\\webapps\\upload\\";// 获取原始图片的扩展名String originalFilename = file.getOriginalFilename();// 生成文件新的名字String newFileName =  originalFilename;// 封装上传文件位置的全路径File targetFile = new File(filePath, newFileName);file.transferTo(targetFile);// 封装数据user.setUserName(name);user.setRoleId(roleId);user.setUserImg(newFileName);user.setUserAccount(userAccount);user.setUserPassword(userPassword);user.setUserTel(userTel);user.setUserWxid(userWxid);user.setUserIdcard(userIdcard);user.setUserAddress(userAddress);user.setUserDeleted(0);user.setCreateTime(new Date());user.setUpdateTime(new Date());userService.addUser(file,user,map);return "redirect:userList.action";}

完结
有问题欢迎来搞!